I got the idea from a magazine years ago. Kawasaki's Team Green was using these in World Superbike, with green antifreeze running through them.
Somewhere around $2-$3 per foot. That left me enough money to buy some nice rolled stainless steel hose clamps (the non-marring type).
A trick with these is to tighten them down, add the coolant, then warm the quad up and tighten them again while the hoses are soft, this way you can be sure they are tight enough.
James
1995 Titled Laeger Narrow Pro-Trax w/ 1991 CR5000 Linkage / All Stainless Hardware / Custom Axis Shocks / LSR Axle / Baldwin Anti-Fade / 265CC Mildly Ported National / Port Matched V-Force3 Reed Cage / 39mm PWK / No-Toil Air Filter / Custom Filter Bracket / ESR CR250 Ignition / Sparks MX Pipe / ESR Silencer / IMS 4G Tank Line-X'd / AC Bumper, Grab Bar, Pro-Peg Nerfs, Skidplate / Tag Metals Clamp / T2 Cannondale Bend Bars (Sandblasted) / TRX450R Front Brake Master / ODI Lock On Grips / 300EX Throttle